CN210218291U - Hydraulic cylinder with self-cleaning function - Google Patents

Abstract

The utility model discloses an in the hydraulic equipment field, in particular to hydraulic cylinder with self-cleaning function. The hydraulic oil cylinder with the self-cleaning function comprises a cylinder body, a piston rod is inserted into the cylinder body, a piston ring used for dividing the cylinder body into a first cavity and a second cavity is sleeved on the piston rod, an oil inlet and an oil outlet are respectively formed in the first cavity and the second cavity, a bearing is arranged at one end, extending out of the cylinder body, of the piston rod, a dustproof portion is arranged below the bearing and comprises a first permanent magnet, a second permanent magnet and a dustproof cover, one end of the dustproof cover is fixedly connected with the first permanent magnet, the other end of the dustproof cover is fixedly connected with the second permanent magnet, and a buffer portion used for pushing the second permanent magnet away from the cylinder body is arranged between the second permanent. The utility model discloses a rational in infrastructure and buffering effect is good.

Description

Hydraulic cylinder with self-cleaning function

Technical Field

The utility model relates to a hydraulic equipment technical field, in particular to hydraulic cylinder with self-cleaning function.

Background

The hydraulic cylinder is used as a hydraulic component commonly used, and today of rapid industrial development in China is endowed with more important significance, higher requirements are provided for the hydraulic cylinder in a high-strength working environment, the traditional hydraulic cylinder is in a telescopic process, telescopic parts are exposed in the air, and when reciprocating motion is performed, impurities such as dust are often brought into the cylinder body, the hydraulic cylinder is polluted, and the service life of the hydraulic cylinder is greatly reduced. Therefore, a hydraulic cylinder with a self-cleaning function is needed to solve these problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rational in infrastructure, good hydraulic cylinder that has self-cleaning function of buffering effect.

In order to realize the above object of the present invention, the present invention provides a method for manufacturing a semiconductor device, which comprises:

the utility model provides a hydraulic cylinder with self-cleaning function, which comprises a cylinder body, it is equipped with the piston rod to insert in the cylinder body, cup joint the piston ring that is used for being divided into first cavity and second cavity with the cylinder body on the piston rod, be provided with oil inlet and oil-out on first cavity and the second cavity respectively, the piston rod stretches out the one end outside the cylinder body and is provided with the bearing, the bearing below is provided with the dust guard, the dust guard includes first permanent magnet, second permanent magnet and dust cover, the one end and the first permanent magnet rigid coupling of dust cover, one end and second permanent magnet rigid coupling in addition, be provided with the buffer section that is used for pushing away the second permanent magnet from the cylinder. The piston rod is at the in-process that falls back to the cylinder body, and first permanent magnet and second permanent magnet interact slow down the speed that the piston rod fell back, and the dust cover can prevent effectively that dust impurity from getting into the pneumatic cylinder and polluting hydraulic oil.

Further, the buffering portion comprises an organ type dustproof sleeve sleeved on the piston rod, and a damping spring is arranged on the periphery of the organ type dustproof sleeve.

Further, dustproof fluff is arranged on the periphery of the dustproof cover.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the first permanent magnet is matched with the second permanent magnet. The effective buffer piston rod can be the speed of the hydraulic cylinder.

2. The cover is equipped with organ type dust cover and dust cover. Can effectually prevent that dust impurity from getting into the cylinder body, and then polluting hydraulic oil.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is another schematic view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is an enlarged view of the part a of the present invention.

The oil-gas-filled piston pump comprises a cylinder body 1, an oil inlet 11, an oil outlet 12, a piston rod 2, a bearing 21, a dust-proof part 3, a first permanent magnet 31, a second permanent magnet 32, a dust-proof cover 33, a buffer part 4, an organ-type dust-proof sleeve 41 and a damping spring 42.

Detailed Description

The present invention will be further explained with reference to the following embodiments, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "vertical" and "outer peripheral surface" are used to indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the term "vertical" or the like does not imply that the components are required to be absolutely horizontal or overhanging, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, a hydraulic cylinder with a self-cleaning function includes a cylinder body 1, a piston rod 2 is inserted into the cylinder body 1, a piston ring for dividing the cylinder body 1 into a first cavity and a second cavity is sleeved on the piston rod 2, an oil inlet 11 and an oil outlet 12 are respectively arranged on the first cavity and the second cavity, a bearing 21 is arranged at one end of the piston rod 2 extending out of the cylinder body 1, a dust-proof portion 3 is arranged below the bearing 21, the dust-proof portion 3 includes a first permanent magnet 31, a second permanent magnet 32 and a dust-proof cover 33, one end of the dust-proof cover 33 is fixedly connected with the first permanent magnet 31, the other end of the dust-proof cover is fixedly connected with the second permanent magnet 32, and a buffer portion 4 for pushing the second permanent magnet 32 away from the cylinder body. The piston rod 2 is at the in-process that falls back to cylinder body 1, and first permanent magnet 31 and second permanent magnet 32 interact slow down the speed that the piston rod 2 falls back, and dust cover 33 can prevent effectively that dust impurity from getting into the pneumatic cylinder and polluting hydraulic oil.

Preferably, the buffer part 4 comprises an organ type dust-proof sleeve 41 sleeved on the piston rod 2, and a damping spring 42 is arranged on the periphery of the organ type dust-proof sleeve 41. The speed of the piston rod 2 falling back into the cylinder body 1 can be effectively buffered.

Preferably, the first permanent magnet 31 and the second permanent magnet 32 have the same magnetic pole. The magnetic poles are the same, and the first permanent magnet 31 and the second permanent magnet 32 repel each other, so that the falling speed of the piston rod 2 can be effectively reduced.

Preferably, the dust cover 33 is provided with dust-proof fluff on the outer periphery. Prevent debris adhesion on piston rod 2, and then pollute hydraulic oil, influence the life of piston rod 2.

The utility model discloses a concrete working process and principle: the utility model provides a hydraulic cylinder with self-cleaning function, including cylinder body 1, 1 interpolation of cylinder body is equipped with piston rod 2, the piston rod 2 is gone up to cup joint and is used for dividing into the piston ring of first cavity and second cavity with cylinder body 1, be provided with oil inlet 11 and oil-out 12 on first cavity and the second cavity respectively, piston rod 2 stretches out the one end outside cylinder body 1 and is provided with bearing 21, bearing 21 below is provided with dustproof portion 3, dustproof portion 3 includes first permanent magnet 31, second permanent magnet 32 and dust cover 33, the one end and the first permanent magnet 31 rigid coupling of dust cover 33, one end and second permanent magnet 32 rigid coupling in addition, be provided with buffer 4 that is used for pushing away second permanent magnet 32 from cylinder body 1 between second permanent magnet 32 and cylinder body 1. The first permanent magnet 31 and the second permanent magnet 32 have the same magnetic pole, the buffer part 4 comprises an organ type dustproof sleeve 41 sleeved on the piston rod 2, and a damping spring 42 is arranged on the periphery of the organ type dustproof sleeve 41. When the hydraulic cylinder works, the piston rod 2 is inserted in the cylinder body 1 to do reciprocating motion, the first permanent magnet 31 and the second permanent magnet 32 interact with each other, and due to the fact that the magnetic poles of the first permanent magnet and the second permanent magnet are the same, the falling speed of the piston rod 2 is reduced, and the dust cover 33 can effectively prevent dust and impurities from entering the hydraulic cylinder to pollute hydraulic oil.

The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the above preferred embodiments, but the present invention is not limited to the above embodiments, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, but all the technical matters of the present invention are within the scope of the technical solution of the present invention.

It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the range that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention.

Claims (4)

1. The utility model provides a hydraulic cylinder with self-cleaning function, includes the cylinder body, inserts in the cylinder body and is equipped with the piston rod, cup jointed on the piston rod be used for with the cylinder body divide into the piston ring of first cavity and second cavity, be provided with oil inlet and oil-out, its characterized in that on first cavity and the second cavity respectively: the piston rod stretches out the one end in the cylinder body outside and is provided with the bearing, the bearing below is provided with the dust guard, the dust guard includes first permanent magnet, second permanent magnet and dust cover, the one end and the first permanent magnet rigid coupling of dust cover, one end and second permanent magnet rigid coupling in addition, be provided with the buffer portion that is used for pushing away the second permanent magnet from the cylinder body between second permanent magnet and cylinder body.

2. The hydraulic oil cylinder with the self-cleaning function as claimed in claim 1, wherein: the buffering part comprises an organ type dustproof sleeve sleeved on the piston rod, and a damping spring is arranged on the periphery of the organ type dustproof sleeve.

3. The hydraulic oil cylinder with the self-cleaning function as claimed in claim 1, wherein: the first permanent magnet and the second permanent magnet have the same magnetic pole.

4. The hydraulic oil cylinder with the self-cleaning function as claimed in claim 1, wherein: and the periphery of the dust cover is provided with dust-proof soft hair.

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